Adjustable chair or similar article



FIG. 1 is a front perspective view of an adjustable chair or similar article showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is a rear elevational view thereof; and

FIG. 6 is a front perspective view of an adjustable chair or similar article showing a second embodiment of my new design. 

The ornamental design for an adjustable chair or similar article, as shown and described. 